When working with a large set of routes, roughly exceeding 30,000 route table
entries, TNSR may require additional memory to be allocated for the VPP
dataplane Forwarding Information Bases (FIB). Smaller routing tables do not
require special configuration.

This memory allocation can be performed in configuration mode using one of the
following commands:

For IPv4:

tnsr# configuretnsr(config)# dataplane ip heap-size <size>

For IPv6:

tnsr# configuretnsr(config)# dataplane ip6 heap-size <size>

The format of the size is <number>[KMG], for example: 512M or 1G for
512 Megabytes or 1 Gigabyte, respectively.

The VPP dataplane service requires a restart to enable this configuration.
Restart VPP from the TNSR configuration mode CLI using the following command: